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International Tool Catalog Library The Manual Library Additional Collections Catalogs CollectionUploaded by Mark Stansbury on
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The date is estimated at 1931 based on a reference to their Techniheat tempering, perfected Apr. 1931. See also:
Thorsen Tools, Inc.
Thorsen Manufacturing Co.
Thorsen Tool Co.
This was found on the site Papaws Wrench, contributed by member "OilyRascal", thank you.
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Uploaded by Mark Stansbury on